Possible Causes
NOTE:
Monitor description.
Inferred mixture strength (lambda) below threshold, (richer mixture). Monitors cylinder specific fuelling errors which may not be detected by the overall fuel system monitor
- Intake air system blockage, restricting air from entering cylinders
- Specified cylinder, localized damage/restriction of fuel rail
- Specified cylinder, localized blockage/restriction within exhaust manifold
- Fuel injector failure
- Damage/friction in valve train components
- Camshaft profile switching system failure